Fastening inserting machine



sept. 26, 1944.

H. LANE ET AL FASTENING INSERTING MACHINE Filed July 18 1942 Patented Sept. 26, 1944 FAsTENiNG INSERTING MACHINE.

Harold Lane and William. Arthur Barton, Leicester, England, assignors to United Shoe Machinery Corporation, Flemington, N. J., a corporation of New Jersey Original application June 3, 1941, Serial No. 396,438. Divided and this application July 18, 1942, Serial No. 451,446. In Great Britain June 6 Claims.

This invention relates to fastening-inserting` machines and is herein illustrated as applied to a machine of the type disclosed in Letters Patent of the United States N o. 2,318,083, granted on May 4, 1943, `upon an application of Lane and Barton,

of which this application is a division, said machine having means for tensioning a shoe upper over a last and fastening-inserting means movable relatively to the last into position toI fasten the upper to a sole. It will be understood, however, that this invention is not limited to machines of that particular type nor, in certain respects, to machines for fastening shoe uppers.

Machines of the illustrated type are each provided with fastening-inserting mechanism which comprises a guide for the fastenings, the guide cooperating with fastening-driving means, and a deector at the outlet end of the guide for engaging the fastening before it enters the work and for bending it progressively in the driving operation to cause it to follow a curved path in the Work, and in accordance with a feature of the invention novel means'is provided for adjusting the initial position of the guide relatively to the deector to vary theY degree of curvature of the fastening. In the illustrated construction, the fastening-inserting mechanism is particularly adapted to insert staples and is constructed and arranged to effect relative movement of the driver and the deector in a direction at an angle to the line of drive near the end of each opera- Y,tive movement of the driver to cause the driver to complete the driving `of the staple fully'into the work. Since it is desired in the illustrated machine to maintain the staple deector in a permanently xed position relatively to its supporting slide, means is provided for initially adjusting the staple guide and the direction or angle at which the driver moves relatively to the deflector to determine the degree of curvature to be imparted to the staple legs bythe deecto-r.

The above and other novel features of the invention, including novel details of construction and combinations of parts, will now be more particularly described by reference to the accompanying drawing and will be pointed out in the claims.

In the drawing,

Fig. l is a View in left-hand side elevation of a portion of the head of a machine in which the invention is embodied, showing the parts in the positions they assume substantiallyat'the end of the staple-driving operation;

Fig. 2 is a sectionon the line II-II in Fig. 1;

Fig. 3 s a section on the line III-III in Fig. 2;

Fig. 4 is a section on the line IV-IV in Fig. 1;

and

' vFig. 5 is a detail view of a portion of the stapledriving mechanismof the machine and showing 5 the means for varying the direction of movement of the driver.

The invention is illustrated as embodied in a machine of the type disclosed in the above-mentioned Letters Patent and, accordingly, only such features of the general organization as it isnecessary to refer to for an understanding of the invention will be described herein in detail. It will be understood that a machine of this type is provided with a side gage Il) (Fig. l), a sole rest (not shown) serving to position the shoe,

shoe-upper-tensioning mechanism, and fastening-inserting means such as a staple-driving mechanism I3 cooperating with a deflector I4 carried on the forward end of a slide I2, the slide being mounted in the machine head for forward movement toward the operator in a' downwardly inclined path, the slide also carrying the stapledriving mechanism. The upper-tensioning mechanism is arranged progressively to tension unlasted portions of the upper over the last and insole along the edge of the bottom of the shoe, held in the operators hands. In time relation to each pulling of the upper a staple is driven by the staple-driving mechanism to fasten the 3o tensioned marginal portion of the upper to the insole. As the staple is driven, its legs are engaged by the deflector I4, the deflector acting to curve successive portions of the legs before they enter the work to cause the legs to follow curved paths and to become eiectively anchored in the insole. Moreover, in time relation to each upper pulling operation, the slide I2 is moved forwardly to carry the lower end of the staple-driving mechanism, usually referred to as a staple-guiding nozzle I5 (Fig. 5), and other parts associated therewith, inwardly over the shoe bottom to lay the marginal portion of the upper over the insole, whereupon the staple is driven and thereafter the slide l2 is retracted to its starting position.

The staple-driving mechanism I3 (Fig. 1) is progranted May 20,1941, upon an application filed in the names of Elliott and Mawbey, and accordingly, only so much of them will be described,

here as is necessary for an understanding of this invention. As disclosed in that patent, the stapleguiding nozzle I5 is mounted to tip about the axis of a horizontal pin |08 (Fig. 5) projecting from a forward extension I| on the slide I2. The driver-operating means, to be described, is so constructed that at a predetermined time in the operation of the driver, preferably at the time when the crossbar of the staple is engaged by the deflector I4, the staple-guiding nozzle I is tipped about the axis of the pin |08 to move the stapleengaging end of the driver 34 heightwise of the deflector I4 toward the work. The pin v |03 isso located that, as the driver 34 is thus tipped with the guiding nozzle I5 during the remaining portion of its operative stroke, its staple-engaging end moves in a path approaching parallelism with the deilecting face of the deflector. The pin |03 is located just above a guideway I I2 in the nozzle I5 and the driver 34 normally extends into the guideway ||2.

In the illustrated construction, the staple deflector I4 is rigidly mounted on the supporting slideI I2 opposite the outlet end of the stapleguiding nozzle I5 and, hence, for the purpose of adjusting the degree of curvature imparted to' the staple legs during the driving of a staple, it is desired to adjust initially the distance between the outlet end of the nozzle I5 and the deflecting face of the delector, as well as the angularity of the drivers approach to the deflector, prior to the driving of a staple to determine the curvature of the legs of the staple tobe driven. As in the construction disclosed in the` above-mentioned Elliott and Mawbey patent, the driver 34 is secured to a slide I I4 (Fig. 5) which is reciprocated a uniform distance in guideways formed in the nozzle, the slide I I4 being pivotally connected at I I6 to a link I I8 the forward or up-per end of which is pivotally secured at IIS to the upwardly extending arm of a bell-crank lever which is oscillated by cam-operated mechanism, similar to the corresponding mechanism described in the above-mentioned patent, to impart stapledriving and tipping movements to the driver 34. For the saine purpose as stated in the said patent,

the link I i8 is pivotally secured by a pin |26 substantially midway between its ends to an arm |22 which is longer than the arm |20 and is mounted for swinging movement about a xed iulcrum stud |24.

In order to permit an initial adjustment of the staple-guiding nozzle I5 relatively to the stapledeflecting face of the deflector I4 prior to the driving of a staple, the hub of the arm |20 isrotatably mounted o-n an eccentric sleeve |28 (Figs. 4 and 5), the sleeve itself being ro-tatably mounted on a stud |30 supported in a bracket |32 (Fig. 1) which, as more fully disclosed in the above-mentioned` patent, is adjust-ably secured to the slide I2. The eccentric sleeve |28 has secured on its right-hand end (Fig. 4) a hand lever |34 by which the sleeve may be rotated. The hand lever has mounted in it a springpressed plunger |36 which is arranged to engage either of two notches |38 (Fig. 5), one of which is formed in a segment |40 secured to the rightliand end of the stud |30 (Fig. 4) and the other of which is formed on a segment |42 which is adjustable about the stud |30 and is located between the hand lever |34 and the segment |40. The segment |40 has formed in it an arcuate slot |44 through which a screw |45 passes. The screw is threaded into the segment |42 and serves to clamp the two segments I4!) and |42 together. If the screw |46 is slackened, the segment |42 may be adjusted about the axis of the stud |30 to vary the distance between the two notches |38 and, accordingly, the extent of movement of the hand lever |34.

The axis of the eccentric sleeve 28 is offset from the axis of the stud |30 only a relatively small amount and in the position of the parts shown in Fig. 5 this axis is located at the rearward or left-hand side of the axis of the stud. The eccentric sleeve |28 is so arranged that in either position yof adjustment of the hand lever |34 the driver 34 completes its staple-driving stroke in substantially the same position relatively to the delector I4, or in other words the final position of the staple-engaging end of the actuated driver 34 relatively to the staple-deilecting face of the deilector I4 remains unaltered.

When, however, the staple driver 34 is in its retracted position, adjustment of the eccentric ,sleeve |28 from one position to the other raises or lowers the pin I|9 pivotally connecting the link H2 `with the -arm |20, thus raising or lowering the 'lower end of the staple-guiding nozzle I5 relatively to the deecting face of the deflector I4. Accordingly, the distance between the lower end of the staple-guiding nozzle and the deilecting face of the deiiector I4 is either decreased or increased andV at the same time the angle of movement of the driver relatively to the deiiector is changed.l This results in a corresponding change in the degree of curvature imparted to the legs of the staple to be driven'.

In the machine disclosed in Letters Patent of the United States No. 1,815,295, granted on July 21, 1931, upon an application of George Goddu, the staple wire is fed from a reel of wire and the winding of the wire on the reel causes the wire, when it is drawn from the reel, to have a tendency to curve in one direction and thus make accurate measuring of la length of wire difficult. To overcome this obstacle,` the following mechanism is provided. The present machine has, similar to the machine disclosed in the Goddu patent, a wire-guiding nozzle |43 (Fig. 2) which, together with a so-called inside staple former |50, is mounted on the slide I2 and, therefore, both members |48 and |50 participate in the forward and rearward movements of the slide. lThe wireguiding nozzle' |48 serves'to present an extent of wire, fed through the nozzle by mechanism disclosed in the Goddu patent, to a substantially U-shaped outside vformer |52 secured to a block |56, together with a wire-severing `knife |54, the block itself being secured to the machine frame. The wire-feeding operation of the nozzle |48, to present an extent of wire to the outside former |52, is terminated by an adjustable stop. For the purpose of the present invention the stop is in the form of a spring-pressed plunger |58 (Fig. 3) slidably mounted in a bore provided in the block |56, the longitudinal axis of the plunger being in alinement with the outlet end of the nozzle |48 when the end of the wire is fed through the nozzle (Fig. 3). One end of the plunger |58 is held by a coil spring |60 located in the bore in the block |56 against the outside former |52 provided with wire-guiding slots through which the wire is fed. In the center of the end face of the plunger |58 adjacent to the outside former |52 is formed a small recess into which the end of the wire is fed. The inner end of the spring |60 is mounted on thereduced portion '|64 of a screw |62 threaded into the bore of the 'block |56, the portion |64 acting asvan adjustable stop for the plunger |58 when the 'latter is moved inwardly as a result of the feeding of the Wire. The spring It@ is relatively light and, when the Wire is being fed through the slots of the outside former E52, the Wire end enters the recess in the plunger 55S and, as the Wire continues to be fed, the plunger i513 is pushed back until it engages the stop |54, the latter, therefore, determining the length of wire fed in. As'the plunger IEB is moved back or inwardly by the Wire against the pressure of the light spring E69, the engagement of the Wire end with the recess in the plunger |53 causes the wire to be moved in a straight path, with the result that the correct length of wire is measured.

The staple wire-feeding mechanism above described but not claimed herein has been made the subject-matter of a divisional application Serial No. 498,544, filed August 13, 1943, in our names.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent of the United States is:

1. In a fastening-inserting machine, means for driving a fastening, a guide for the fastening cooperating with said driving means, a deiiector at the outlet end of the guide for engaging the fastening before it enters the work and for bending it progressively during the driving operation to cause it to follow a curved path in the Work, and means for adjusting the initial position of said guide relatively to the deector to vary the degree ofcurvature of the fastening.

2. In a fastening-inserting machine, the combination with shoe-positioning means of means for fastening the upper of a shoe to a sole, the fastening means comprising a driver movable in a direction at an angle to the bottom face of the sole to drive the fastening through the upper and into the sole, a nozzle for guiding the fastening and the driver, a deflector for engaging the fastening before it enters the Work and for bending it progressively during the driving operation to cause it to follow a curved path in the Work, and means acting on the nozzle for varying the angle of drive of the driver relatively to the deflector to vary the curvature of the fastening.

3. In a fastening-inserting machine, the combination with a driver for driving fastenings and a deector arranged to act on different portions of each fastening successively before the different respective p-ortions enter the work to bend the fastening progressively as it is driven, of means for effecting relative movement of the driver and the deflector in a direction at an angle to the line of drive near the end of each operative movement of the driver to cause the driver to complete the driving of the fastening fully into the Work, ii'

and means for initially adjusting the direction of movement of the driver relatively to the deflector to determine the degree of curvature to be imparted to the fastening by the deflector.

4. In a fastening-inserting machine, the com- Y" bination with a driver for driving fastenings and a deflector arrangedv to act on different portions of each fastening successively before the different respective portions enter the Work to bend the fastening progressively as it is driven, of means for tipping the driver substantially at the end of its driving stroke toward the vvork to cause the driver to complete the driving of the fastening fully into the Work, and an eccentric member included in the driver-tipping means for initially adjusting the direction of movement of the driver relatively to the deflector to determine the degree of curvature to be imparted to the fastening by the deilector.

5. In a-fastening-inserting machine, the combination With a driver for driving fastenings and a deector arranged to act on different portions of each fastening successively before the different respective portions enter the Work to bend the fastening progressively as it is driven, of means for effecting relative movement of the driver and the deflector in a direction at an angle to the line of drive near the end of each operative movement of the driver to cause the driver to complete the driving of the fastening fully into the Work, and means for initially adjusting the direction of movement of the driver relatively to the deflector to determine the degree of curvature to be imparted to the fastening by the deflector, the adjusting means being arranged to cause the driver always to conclude its driving stroke in the same y position relatively to the deector regardless of the initial adjustment of the direction of movement of the driver.

6. In a fastening-inserting machine, the combination with a staple-guiding nozzle having a guidevvay for a staple inclined at an angle to the face cf the Work into which the staple is to loe driven, the nozzle being mounted for tipping movement about an axis extending crosswise to said guideway, and a deector opposite to the nozzle for engaging the legs of the staple to curve different portions of the leg successively in the driving operation before the different respective portions enter the work to cause them to follow curved paths in the Work, of a driver for driving a staple through said nozzle in the direction of said guidevvay, means for operating the driver and for tipping the nozzle about its axis in a direction to cause the staple-engaging end of the driver to move relatively to the deector toward the Work to force the staple fully into the Work, said operating means comprising a slide movable in a guideway in said nozzle, a lever for operating said slide, a link connecting the slide and said lever, a pair of arms of unequal lengths pivotally connected to said link and so arranged as to cause the movement of the lever to be transmitted to the slide, first in a substantially straight line path parallel to the driver and then in a path at an angle to the driver to tip the nozzle substantially at the end of the operative movement of the driver, and an eccentric bearing for one of said arms adjustable to tip the nozzle prior to the operative movement of the driver so as to vary the position of the nozzle relatively to the deector to determine the degree of curvature to be imparted to the fastening by the deflector.

HAROLD LANE. WILLIAM ARTHUR BARTON. 

